netdev/ipv6: Move xxx_ipv6multicast from arch to common code

The `xxx_ipv6multicast` function in each driver is not adapted to
multiple IPv6 addresses yet, and they're redundant, so try to take them
into common code.

Change:
1. Add MAC `g_ipv6_ethallnodes` and `g_ipv6_ethallrouters` in
   `icmpv6_devinit` and call them in `netdev_register`
2. Add multicast MAC for Neighbor Solicitation when adding any IPv6
   address, and remove them when IPv6 address is removed
3. Select `NET_MCASTGROUP` when `NET_ICMPv6` because now we need
   `d_addmac` when we have ICMPv6

Note:
We want modules outside net stack to call functions like
`netdev_ipv6_add` and never touch the related MAC address, so these MAC
functions are added as internal functions to `net/netdev/netdev.h`

Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
This commit is contained in:
Zhe Weng
2023-12-13 12:39:43 +08:00
committed by Xiang Xiao
parent 06e5b661ed
commit 5aeb15469a
37 changed files with 290 additions and 2066 deletions
-82
View File
@@ -221,9 +221,6 @@ static int ftmac100_addmac(FAR struct net_driver_s *dev,
static int ftmac100_rmmac(FAR struct net_driver_s *dev,
FAR const uint8_t *mac);
#endif
#ifdef CONFIG_NET_ICMPv6
static void ftmac100_ipv6multicast(FAR struct ftmac100_driver_s *priv);
#endif
#endif
/****************************************************************************
@@ -1061,12 +1058,6 @@ static int ftmac100_ifup(struct net_driver_s *dev)
ftmac100_set_mac(priv, priv->ft_dev.d_mac.ether.ether_addr_octet);
#ifdef CONFIG_NET_ICMPv6
/* Set up IPv6 multicast address filtering */
ftmac100_ipv6multicast(priv);
#endif
/* Enable the Ethernet interrupt */
priv->ft_bifup = true;
@@ -1309,79 +1300,6 @@ static int ftmac100_rmmac(struct net_driver_s *dev, FAR const uint8_t *mac)
}
#endif
/****************************************************************************
* Name: ftmac100_ipv6multicast
*
* Description:
* Configure the IPv6 multicast MAC address.
*
* Input Parameters:
* priv - A reference to the private driver state structure
*
* Returned Value:
* OK on success; Negated errno on failure.
*
* Assumptions:
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
static void ftmac100_ipv6multicast(FAR struct ftmac100_driver_s *priv)
{
FAR struct net_driver_s *dev;
uint16_t tmp16;
uint8_t mac[6];
/* For ICMPv6, we need to add the IPv6 multicast address
*
* For IPv6 multicast addresses, the Ethernet MAC is derived by
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
mac[1] = 0x33;
dev = &priv->ft_dev;
tmp16 = dev->d_ipv6addr[6];
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];
mac[4] = tmp16 & 0xff;
mac[5] = tmp16 >> 8;
ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
ftmac100_addmac(dev, mac);
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
/* Add the IPv6 all link-local nodes Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Advertisement
* packets.
*/
ftmac100_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_AUTOCONF */
#ifdef CONFIG_NET_ICMPv6_ROUTER
/* Add the IPv6 all link-local routers Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Solicitation
* packets.
*/
ftmac100_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_ROUTER */
}
#endif /* CONFIG_NET_ICMPv6 */
/****************************************************************************
* Public Functions
****************************************************************************/
-79
View File
@@ -129,9 +129,6 @@ static int lan91c111_addmac(FAR struct net_driver_s *dev,
static int lan91c111_rmmac(FAR struct net_driver_s *dev,
FAR const uint8_t *mac);
#endif
#ifdef CONFIG_NET_ICMPv6
static void lan91c111_ipv6multicast(FAR struct net_driver_s *dev);
#endif
#endif
#ifdef CONFIG_NETDEV_IOCTL
static int lan91c111_ioctl(FAR struct net_driver_s *dev, int cmd,
@@ -974,12 +971,6 @@ static int lan91c111_ifup(FAR struct net_driver_s *dev)
copyto16(priv, ADDR0_REG, &dev->d_mac.ether, sizeof(dev->d_mac.ether));
#ifdef CONFIG_NET_ICMPv6
/* Set up IPv6 multicast address filtering */
lan91c111_ipv6multicast(dev);
#endif
net_unlock();
/* Enable the Ethernet interrupt */
@@ -1248,76 +1239,6 @@ static int lan91c111_rmmac(FAR struct net_driver_s *dev,
}
#endif
/****************************************************************************
* Name: lan91c111_ipv6multicast
*
* Description:
* Configure the IPv6 multicast MAC address.
*
* Parameters:
* dev - Reference to the NuttX driver state structure
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
static void lan91c111_ipv6multicast(FAR struct net_driver_s *dev)
{
uint16_t tmp16;
uint8_t mac[6];
/* For ICMPv6, we need to add the IPv6 multicast address
*
* For IPv6 multicast addresses, the Ethernet MAC is derived by
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
mac[1] = 0x33;
tmp16 = dev->d_ipv6addr[6];
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];
mac[4] = tmp16 & 0xff;
mac[5] = tmp16 >> 8;
ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
lan91c111_addmac(dev, mac);
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
/* Add the IPv6 all link-local nodes Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Advertisement
* packets.
*/
lan91c111_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_AUTOCONF */
#ifdef CONFIG_NET_ICMPv6_ROUTER
/* Add the IPv6 all link-local routers Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Solicitation
* packets.
*/
lan91c111_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_ROUTER */
}
#endif /* CONFIG_NET_ICMPv6 */
/****************************************************************************
* Name: lan91c111_ioctl
*
-80
View File
@@ -131,9 +131,6 @@ static int net_rpmsg_drv_addmac(FAR struct net_driver_s *dev,
static int net_rpmsg_drv_rmmac(FAR struct net_driver_s *dev,
FAR const uint8_t *mac);
#endif
#ifdef CONFIG_NET_ICMPv6
static void net_rpmsg_drv_ipv6multicast(FAR struct net_driver_s *dev);
#endif
#endif
#ifdef CONFIG_NETDEV_IOCTL
static int net_rpmsg_drv_ioctl(FAR struct net_driver_s *dev, int cmd,
@@ -715,12 +712,6 @@ static int net_rpmsg_drv_ifup(FAR struct net_driver_s *dev)
net_ipv6addr_copy(dev->d_ipv6netmask, msg.ipv6netmask);
#endif
#ifdef CONFIG_NET_ICMPv6
/* Set up IPv6 multicast address filtering */
net_rpmsg_drv_ipv6multicast(dev);
#endif
net_unlock();
#ifdef CONFIG_NETDB_DNSCLIENT
@@ -960,77 +951,6 @@ static int net_rpmsg_drv_rmmac(FAR struct net_driver_s *dev,
}
#endif
/****************************************************************************
* Name: net_rpmsg_drv_ipv6multicast
*
* Description:
* Configure the IPv6 multicast MAC address.
*
* Parameters:
* dev - Reference to the NuttX driver state structure
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
static void net_rpmsg_drv_ipv6multicast(FAR struct net_driver_s *dev)
{
if (dev->d_lltype == NET_LL_ETHERNET || dev->d_lltype == NET_LL_IEEE80211)
{
uint16_t tmp16;
uint8_t mac[6];
/* For ICMPv6, we need to add the IPv6 multicast address
*
* For IPv6 multicast addresses, the Ethernet MAC is derived by
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
mac[1] = 0x33;
tmp16 = dev->d_ipv6addr[6];
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];
mac[4] = tmp16 & 0xff;
mac[5] = tmp16 >> 8;
ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
net_rpmsg_drv_addmac(dev, mac);
#if defined(CONFIG_NET_ETHERNET) && defined(CONFIG_NET_ICMPv6_AUTOCONF)
/* Add the IPv6 all link-local nodes Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Advertisement
* packets.
*/
net_rpmsg_drv_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet);
#endif /* CONFIG_NET_ETHERNET && CONFIG_NET_ICMPv6_AUTOCONF */
#if defined(CONFIG_NET_ETHERNET) && defined(CONFIG_NET_ICMPv6_ROUTER)
/* Add the IPv6 all link-local routers Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Solicitation
* packets.
*/
net_rpmsg_drv_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet);
#endif /* CONFIG_NET_ETHERNET && CONFIG_NET_ICMPv6_ROUTER */
}
}
#endif /* CONFIG_NET_ICMPv6 */
/****************************************************************************
* Name: net_rpmsg_drv_ioctl
*
-83
View File
@@ -174,9 +174,6 @@ static int skel_addmac(FAR struct net_driver_s *dev,
static int skel_rmmac(FAR struct net_driver_s *dev,
FAR const uint8_t *mac);
#endif
#ifdef CONFIG_NET_ICMPv6
static void skel_ipv6multicast(FAR struct skel_driver_s *priv);
#endif
#endif
#ifdef CONFIG_NETDEV_IOCTL
static int skel_ioctl(FAR struct net_driver_s *dev, int cmd,
@@ -650,14 +647,6 @@ static int skel_ifup(FAR struct net_driver_s *dev)
/* Initialize PHYs, Ethernet interface, and setup up Ethernet interrupts */
/* Instantiate MAC address from priv->sk_dev.d_mac.ether.ether_addr_octet */
#ifdef CONFIG_NET_ICMPv6
/* Set up IPv6 multicast address filtering */
skel_ipv6multicast(priv);
#endif
/* Enable the Ethernet interrupt */
priv->sk_bifup = true;
@@ -849,78 +838,6 @@ static int skel_rmmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac)
}
#endif
/****************************************************************************
* Name: skel_ipv6multicast
*
* Description:
* Configure the IPv6 multicast MAC address.
*
* Input Parameters:
* priv - A reference to the private driver state structure
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
static void skel_ipv6multicast(FAR struct skel_driver_s *priv)
{
FAR struct net_driver_s *dev;
uint16_t tmp16;
uint8_t mac[6];
/* For ICMPv6, we need to add the IPv6 multicast address
*
* For IPv6 multicast addresses, the Ethernet MAC is derived by
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
mac[1] = 0x33;
dev = &priv->sk_dev;
tmp16 = dev->d_ipv6addr[6];
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];
mac[4] = tmp16 & 0xff;
mac[5] = tmp16 >> 8;
ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
skel_addmac(dev, mac);
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
/* Add the IPv6 all link-local nodes Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Advertisement
* packets.
*/
skel_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_AUTOCONF */
#ifdef CONFIG_NET_ICMPv6_ROUTER
/* Add the IPv6 all link-local routers Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Solicitation
* packets.
*/
skel_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_ROUTER */
}
#endif /* CONFIG_NET_ICMPv6 */
/****************************************************************************
* Name: skel_ioctl
*
+2 -81
View File
@@ -433,9 +433,6 @@ static int w5500_addmac(FAR struct net_driver_s *dev,
static int w5500_rmmac(FAR struct net_driver_s *dev,
FAR const uint8_t *mac);
#endif
#ifdef CONFIG_NET_ICMPv6
static void w5500_ipv6multicast(FAR struct w5500_driver_s *priv);
#endif
#endif
#ifdef CONFIG_NETDEV_IOCTL
static int w5500_ioctl(FAR struct net_driver_s *dev, int cmd,
@@ -1768,12 +1765,6 @@ static int w5500_ifup(FAR struct net_driver_s *dev)
return ret;
}
#ifdef CONFIG_NET_ICMPv6
/* Set up IPv6 multicast address filtering */
w5500_ipv6multicast(self);
#endif
/* Enable the Ethernet interrupt */
self->w_bifup = true;
@@ -1934,6 +1925,7 @@ static int w5500_addmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac)
/* Add the MAC address to the hardware multicast routing table */
UNUSED(priv);
return OK;
}
#endif
@@ -1962,82 +1954,11 @@ static int w5500_rmmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac)
/* Add the MAC address to the hardware multicast routing table */
UNUSED(priv);
return OK;
}
#endif
/****************************************************************************
* Name: w5500_ipv6multicast
*
* Description:
* Configure the IPv6 multicast MAC address.
*
* Input Parameters:
* priv - A reference to the private driver state structure
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
static void w5500_ipv6multicast(FAR struct w5500_driver_s *priv)
{
FAR struct net_driver_s *dev;
uint16_t tmp16;
uint8_t mac[6];
/* For ICMPv6, we need to add the IPv6 multicast address
*
* For IPv6 multicast addresses, the Ethernet MAC is derived by
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
mac[1] = 0x33;
dev = &priv->dev;
tmp16 = dev->d_ipv6addr[6];
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];
mac[4] = tmp16 & 0xff;
mac[5] = tmp16 >> 8;
ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
w5500_addmac(dev, mac);
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
/* Add the IPv6 all link-local nodes Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Advertisement
* packets.
*/
w5500_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_AUTOCONF */
#ifdef CONFIG_NET_ICMPv6_ROUTER
/* Add the IPv6 all link-local routers Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Solicitation
* packets.
*/
w5500_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_ROUTER */
}
#endif /* CONFIG_NET_ICMPv6 */
/****************************************************************************
* Name: w5500_ioctl
*
-85
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@@ -175,9 +175,6 @@ static int cdcecm_addmac(FAR struct net_driver_s *dev,
static int cdcecm_rmmac(FAR struct net_driver_s *dev,
FAR const uint8_t *mac);
#endif
#ifdef CONFIG_NET_ICMPv6
static void cdcecm_ipv6multicast(FAR struct cdcecm_driver_s *priv);
#endif
#endif
#ifdef CONFIG_NETDEV_IOCTL
static int cdcecm_ioctl(FAR struct net_driver_s *dev, int cmd,
@@ -597,16 +594,6 @@ static int cdcecm_ifup(FAR struct net_driver_s *dev)
dev->d_ipv6addr[6], dev->d_ipv6addr[7]);
#endif
/* Initialize PHYs, Ethernet interface, and setup up Ethernet interrupts */
/* Instantiate MAC address from priv->dev.d_mac.ether.ether_addr_octet */
#ifdef CONFIG_NET_ICMPv6
/* Set up IPv6 multicast address filtering */
cdcecm_ipv6multicast(priv);
#endif
priv->bifup = true;
return OK;
}
@@ -787,78 +774,6 @@ static int cdcecm_rmmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac)
}
#endif
/****************************************************************************
* Name: cdcecm_ipv6multicast
*
* Description:
* Configure the IPv6 multicast MAC address.
*
* Input Parameters:
* priv - A reference to the private driver state structure
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
static void cdcecm_ipv6multicast(FAR struct cdcecm_driver_s *priv)
{
FAR struct net_driver_s *dev;
uint16_t tmp16;
uint8_t mac[6];
/* For ICMPv6, we need to add the IPv6 multicast address
*
* For IPv6 multicast addresses, the Ethernet MAC is derived by
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
mac[1] = 0x33;
dev = &priv->dev;
tmp16 = dev->d_ipv6addr[6];
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];
mac[4] = tmp16 & 0xff;
mac[5] = tmp16 >> 8;
ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
cdcecm_addmac(dev, mac);
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
/* Add the IPv6 all link-local nodes Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Advertisement
* packets.
*/
cdcecm_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_AUTOCONF */
#ifdef CONFIG_NET_ICMPv6_ROUTER
/* Add the IPv6 all link-local routers Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Solicitation
* packets.
*/
cdcecm_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_ROUTER */
}
#endif /* CONFIG_NET_ICMPv6 */
/****************************************************************************
* Name: cdcecm_ioctl
*
@@ -123,9 +123,6 @@ static int bcmf_addmac(FAR struct net_driver_s *dev,
static int bcmf_rmmac(FAR struct net_driver_s *dev,
FAR const uint8_t *mac);
#endif
#ifdef CONFIG_NET_ICMPv6
static void bcmf_ipv6multicast(FAR struct bcmf_dev_s *priv);
#endif
#endif
#ifdef CONFIG_NETDEV_IOCTL
static int bcmf_ioctl(FAR struct net_driver_s *dev, int cmd,
@@ -636,14 +633,6 @@ static int bcmf_ifup(FAR struct net_driver_s *dev)
CONFIG_IEEE80211_BROADCOM_DEFAULT_COUNTRY);
}
/* Instantiate MAC address from priv->bc_dev.d_mac.ether.ether_addr_octet */
#ifdef CONFIG_NET_ICMPv6
/* Set up IPv6 multicast address filtering */
bcmf_ipv6multicast(priv);
#endif
/* Enable the hardware interrupt */
priv->bc_bifup = true;
@@ -880,6 +869,7 @@ static int bcmf_addmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac)
/* Add the MAC address to the hardware multicast routing table */
UNUSED(priv);
return OK;
}
#endif
@@ -909,82 +899,11 @@ static int bcmf_rmmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac)
/* Add the MAC address to the hardware multicast routing table */
UNUSED(priv);
return OK;
}
#endif
/****************************************************************************
* Name: bcmf_ipv6multicast
*
* Description:
* Configure the IPv6 multicast MAC address.
*
* Input Parameters:
* priv - A reference to the private driver state structure
*
* Returned Value:
* OK on success; Negated errno on failure.
*
* Assumptions:
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
static void bcmf_ipv6multicast(FAR struct bcmf_dev_s *priv)
{
FAR struct net_driver_s *dev;
uint16_t tmp16;
uint8_t mac[6];
/* For ICMPv6, we need to add the IPv6 multicast address
*
* For IPv6 multicast addresses, the Ethernet MAC is derived by
* the four low-order octets OR'ed with the MAC 33:33:00:00:00:00,
* so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map
* to the Ethernet MAC address 33:33:00:01:00:03.
*
* NOTES: This appears correct for the ICMPv6 Router Solicitation
* Message, but the ICMPv6 Neighbor Solicitation message seems to
* use 33:33:ff:01:00:03.
*/
mac[0] = 0x33;
mac[1] = 0x33;
dev = &priv->bc_dev;
tmp16 = dev->d_ipv6addr[6];
mac[2] = 0xff;
mac[3] = tmp16 >> 8;
tmp16 = dev->d_ipv6addr[7];
mac[4] = tmp16 & 0xff;
mac[5] = tmp16 >> 8;
ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
bcmf_addmac(dev, mac);
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
/* Add the IPv6 all link-local nodes Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Advertisement
* packets.
*/
bcmf_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_AUTOCONF */
#ifdef CONFIG_NET_ICMPv6_ROUTER
/* Add the IPv6 all link-local routers Ethernet address. This is the
* address that we expect to receive ICMPv6 Router Solicitation
* packets.
*/
bcmf_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet);
#endif /* CONFIG_NET_ICMPv6_ROUTER */
}
#endif /* CONFIG_NET_ICMPv6 */
/****************************************************************************
* Name: bcmf_ioctl
*